Those almost look like OBD I codes not OBD II (OBD I is 95 and older [some 96's also] OBD II is 96 and newer)... but let's see what they are... my bad they are correct just having a brain cramp... P0463, P0471, P1527 were the codes you said he pulled...
P0463 - Fuel Level Sensor Circuit High Voltage
P0471 - Exhaust Pressure Sensor Range/Performance
P1527 - Transmission Range to Pressure Switch Correlation
Hmm... well I'm not a tech but I'd say it's a sensor rather than a rebuild... a rebuild would be if the clutches and / or bands were worn or the torque converter was bad... these are electronic failures.... did he happen to say if they were history or current?
I have the SAME car as you (LOVE IT!) mine has just over 60,000 miles on it... do this, take it for a drive, when you get home (put the car in park but leave the engine running) press and hold the OFF button to the right of the instrument cluster (for the AC controls) while holding that press the RED warmer temp button above it until all the lights on the dash turn on (you'll know it when it happens) that is diagnositc mode, write down EXACTLY what codes you find - like PCM P1527 HISTORY or P1527 CURRENT, at the end you will be presented with PCM? to CLEAR the codes press the fan speed higher button other wise to exit either press the RECIRCULATE button or turn the ignition off.
If it's a history code then it happened in the past and not durring the current driving cycle, if it's current then it was from this driving cycle. That will probably help us narrow it down.... I occasionally get a code than was just a glitch so when I clear the codes I drive a while (few days) to see if it comes back.